US4881351A - Self-supporting unit element staircase - Google Patents

Self-supporting unit element staircase Download PDF

Info

Publication number
US4881351A
US4881351A US07/149,130 US14913088A US4881351A US 4881351 A US4881351 A US 4881351A US 14913088 A US14913088 A US 14913088A US 4881351 A US4881351 A US 4881351A
Authority
US
United States
Prior art keywords
staircase
handrail
steps
shaped
parts
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US07/149,130
Other languages
English (en)
Inventor
Wilfred Hamm
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Application granted granted Critical
Publication of US4881351A publication Critical patent/US4881351A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F11/00—Stairways, ramps, or like structures; Balustrades; Handrails
    • E04F11/02—Stairways; Layouts thereof
    • E04F11/022—Stairways; Layouts thereof characterised by the supporting structure
    • E04F11/035—Stairways consisting of a plurality of assembled modular parts without further support
    • E04F11/038—Stairways consisting of a plurality of assembled modular parts without further support each modular part having a load-bearing balustrade part
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F11/00—Stairways, ramps, or like structures; Balustrades; Handrails
    • E04F11/02—Stairways; Layouts thereof
    • E04F11/104—Treads
    • E04F11/112—Treads of metal or with an upper layer of metal
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F11/00—Stairways, ramps, or like structures; Balustrades; Handrails
    • E04F11/02—Stairways; Layouts thereof
    • E04F2011/0203—Miscellaneous features of stairways not otherwise provided for
    • E04F2011/0205—Stairways characterised by the use of specific materials for the supporting structure of the treads
    • E04F2011/0209—Stairways characterised by the use of specific materials for the supporting structure of the treads mainly of metal

Definitions

  • the invention concerns a self-supporting unit element staircase, preferentially used as an outside staircase, as used both to permit access to parts of industrial plant and as fireescape staircase for hotels and other large buildings as well as outside staircases in domestic dwellings.
  • the aim of this invention is to create a staircase for the cases of application described above which is capable of being manufactured and erected economically, which requires only a small amount of material and which can be used for practically every application where a flight of stairs is needed without thereby special designs/versions being required.
  • the aim is solved by means of a steel tube construction consisting of U-shaped linking elements, handrail parts which are placed on the upper ends of the linking elements and steps which are attached to the lower ends of the linking elements by means of clamping joints.
  • FIG. 1 shows the typical form of the flight of stairs in a circular staircase.
  • Four constructional elements, namely step, linking element, outside handrail part and inside handrail part, are sufficient for the manufacture of this flight or stairs.
  • FIGS. 2 and 3 show flights of stairs which contain all possible variants.
  • the element of the circular staircase which is already present and which is used for all radial parts of the staircase, all that is needed extra here is the step for the straight sections of staircase in order to cover these.
  • FIG. 4 shows a perspective view of two staircase elements joined together.
  • FIG. 5 shows the step for the straight sections of staircases and FIG. 6 the step for circular sections.
  • FIG. 7 shows in enlarged form the handrail parts which are placed on to the upper end of the linking elements and also shows the way in which these handrail parts are secured.
  • FIG. 8 shows an assembled staircase made up from components such as those shown in FIG. 7.
  • Each step has a U-shaped element (1) formed from steel tubing.
  • a handrail defining part (2) is secured to the end of at least one leg of this U-shape element (1).
  • a straight staircase would have such a handrail part (2) on both legs (See FIG. 4) whereas FIG. 8 shows the inner legs (1a) of an arcuate staircase without any handrail.
  • These inner legs (1a) are joined by a short clamp member (2a) not unlike the right hand end of the stair shown in FIG. 6.
  • the handrail part (2) has a gusset plate (6) that supports the upper ends of balusters (4).
  • the lower ends of these balusters (4) are secured to the step as best shown at the left hand end of the lowermost step in FIG. 8.
  • a plate is preferably provided at the lower ends of these balusters (4) to more conveniently secure them to the left hand end of the step of FIG. 6.
  • FIG. 9 shows the component parts for the staircase of FIGS. 7 and 8.
  • FIG. 10 shows the components parts for the staircase of FIG. 11. Note that two different size handrail parts (2b) and (2c) are provided for utilizing either the rectangular step 3(b) or the arcuate staircase step (3c). The perforated plates of handrail parts (2b) and (2c) provide a different impression from that of the FIGS. 7-8 staircase but the basic staircase constructions are nevertheless quite similar to one another.
  • the central component of the staircase is the linking element (1).
  • This is of steel tube and is shaped by bending into the necessary U-shape.
  • the linking elements are joined to one another at their upper ends by the handrail parts (2) and at their lower ends by means of steps (3).
  • the handrail parts (2) are also of steel tube and have been bent into that shape and are of that size which is required to give the desired pitch to the stairs; they have a coupling sleeve (5) welded on transversely at one end. Into this coupling sleeve are stuck from below the linking element (1) and from above the free end of the next handrail part.
  • the steps (3) consist of a frame of flat steel which has been put into the form of a pipe clamp fitting at each of its four corners. These pipe clamps grip the lower part of a pair of linking elements and ensure an especially rigid connection when the three or, respectively four pipe clamp screws are tightened up.
  • Two shapes of step are used, the particular one being used at any point depending on the shape of the staircase desired at that point.
  • the straight step (FIG. 5) is used for the straight parts of a flight of stairs and the radiussed step (FIG. 6) for the circular parts.
  • the frame of the steps can be filled in with gridiron, perforated plate, bulb plate, stone, wood or plastic coverings.
  • the symmetry of the radiussed step means that it can be used both for clockwise as well as for anticlockwise circular staircases.
  • a plate (6) welded to the handrail part (2) serves as the mounting point for the top of the rail balbusters (4), the bottom end of these being secured to the steps. This represents only one of a large number of different possibilities. Thus the side of the staircase could also be covered in completely with perforated plate etc.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Steps, Ramps, And Handrails (AREA)
  • Bipolar Transistors (AREA)
  • Metal-Oxide And Bipolar Metal-Oxide Semiconductor Integrated Circuits (AREA)
US07/149,130 1987-01-27 1988-01-27 Self-supporting unit element staircase Expired - Lifetime US4881351A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3702278A DE3702278C2 (de) 1987-01-27 1987-01-27 Selbsttragende Elementtreppe
DE3702278 1987-01-27

Publications (1)

Publication Number Publication Date
US4881351A true US4881351A (en) 1989-11-21

Family

ID=6319590

Family Applications (1)

Application Number Title Priority Date Filing Date
US07/149,130 Expired - Lifetime US4881351A (en) 1987-01-27 1988-01-27 Self-supporting unit element staircase

Country Status (7)

Country Link
US (1) US4881351A (de)
EP (1) EP0276423B1 (de)
JP (1) JPH01146052A (de)
AT (1) ATE62966T1 (de)
CA (1) CA1295453C (de)
DE (2) DE3702278C2 (de)
NO (1) NO164362C (de)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5667199A (en) * 1992-09-30 1997-09-16 Hamm; Wilfried Railing made of prefabricated standard components
US5752350A (en) * 1996-09-27 1998-05-19 Imperial Pools, Inc. Modular stair support system useable for a pool or spa
US5983580A (en) * 1998-04-06 1999-11-16 Carr; M. Robert Stair frame
US6523310B1 (en) * 2001-11-23 2003-02-25 Taiwan Lounge Chair Industry Co., Ltd. Tread and handrail combination structure of a staircase
US9499991B2 (en) * 2013-02-11 2016-11-22 John Preston Stair modules which co operate to form a temporary stair case
US20210254328A1 (en) * 2020-02-14 2021-08-19 Franz Kerner Building Complex Comprising At Least Two Buildings, and Buildings

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE9202493U1 (de) * 1992-02-26 1992-04-16 Ortolf, Helmut, 7000 Stuttgart Treppen-Bausatz, insbesondere für eine Bautreppe
DE4411882C2 (de) * 1994-04-07 2003-11-06 Wilfried Hamm Selbsttragende Elementtreppe aus einer Metallgitterkonstruktion
ITBS20090034A1 (it) * 2009-03-03 2010-09-04 Mauro Grandi Scala componibile

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US705794A (en) * 1901-11-25 1902-07-29 Harrison Snider Winding staircase.
US990701A (en) * 1909-10-02 1911-04-25 William Carter Burge Fire-escape.
US4041662A (en) * 1974-05-22 1977-08-16 Wards Construction (Overseas) Ltd. Staircases
US4250977A (en) * 1979-07-18 1981-02-17 Peter Deli Combined seat and step-ladder arrangement

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3418770A (en) * 1966-07-12 1968-12-31 Prod Chimques De Thann Et De M Spiral stairs
GB1170595A (en) * 1966-08-16 1969-11-12 Starkie Gardner Ltd J Structural Unit particularly for Staircases
CH478317A (de) * 1967-08-09 1969-09-15 Lignoform Formsperrholz G Esse Treppe und Verfahren zu deren Herstellung
DE3637807A1 (de) * 1986-11-06 1988-05-19 Wilfried Hamm Selbsttragende elementtreppe
FR2630483A1 (fr) * 1988-04-22 1989-10-27 Houze Jean Escalier autoportant

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US705794A (en) * 1901-11-25 1902-07-29 Harrison Snider Winding staircase.
US990701A (en) * 1909-10-02 1911-04-25 William Carter Burge Fire-escape.
US4041662A (en) * 1974-05-22 1977-08-16 Wards Construction (Overseas) Ltd. Staircases
US4250977A (en) * 1979-07-18 1981-02-17 Peter Deli Combined seat and step-ladder arrangement

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5667199A (en) * 1992-09-30 1997-09-16 Hamm; Wilfried Railing made of prefabricated standard components
US5752350A (en) * 1996-09-27 1998-05-19 Imperial Pools, Inc. Modular stair support system useable for a pool or spa
US5983580A (en) * 1998-04-06 1999-11-16 Carr; M. Robert Stair frame
US6523310B1 (en) * 2001-11-23 2003-02-25 Taiwan Lounge Chair Industry Co., Ltd. Tread and handrail combination structure of a staircase
US9499991B2 (en) * 2013-02-11 2016-11-22 John Preston Stair modules which co operate to form a temporary stair case
US20210254328A1 (en) * 2020-02-14 2021-08-19 Franz Kerner Building Complex Comprising At Least Two Buildings, and Buildings
US11821197B2 (en) * 2020-02-14 2023-11-21 Franz Kerner Building complex comprising at least two buildings, and buildings

Also Published As

Publication number Publication date
EP0276423A3 (en) 1989-04-26
JPH01146052A (ja) 1989-06-08
CA1295453C (en) 1992-02-11
DE3702278C2 (de) 1995-11-16
EP0276423A2 (de) 1988-08-03
JPH0444655B2 (de) 1992-07-22
DE8718004U1 (de) 1992-07-30
EP0276423B1 (de) 1991-04-24
ATE62966T1 (de) 1991-05-15
NO880293D0 (no) 1988-01-25
NO164362C (no) 1990-09-26
NO880293L (no) 1988-07-28
NO164362B (no) 1990-06-18
DE3702278A1 (de) 1988-08-04

Similar Documents

Publication Publication Date Title
AU2018223297B2 (en) Modular furniture system
US4881351A (en) Self-supporting unit element staircase
HU213794B (en) Railing made of prefabricated standard components
US2237572A (en) Knockdown scaffold structure
US3430729A (en) Stairway
US4813651A (en) Fence post with saddle support construction and method therefore
JPH0441831A (ja) 軽量ドーム及びそのためのコネクター
US20070000191A1 (en) Spiral staircase kit
US5123210A (en) Flight of stairs
DE3519718A1 (de) Tragkonstruktion fuer tribuenen
AU648882B2 (en) Standardized step module for building prefabricated staircases, process for producing such module, prefabricated staircase and process for assemblying prefabricated staircases
KR20170007194A (ko) 생물권 보전을 위한 목재 교량 구조물 및 그 시공방법
US4791764A (en) Stair tread support
KR940007612Y1 (ko) 비닐 하우스
EP0146677A3 (de) Aus vorgefertigten Einzelteilen montierbare Holztreppe
KR200322170Y1 (ko) 난간대
JPH0352358Y2 (de)
JPS624126Y2 (de)
CA1036332A (en) Method of constructing a board-type fence
JPS6239279Y2 (de)
JP3044094U (ja) ユニット組立式塀構造及び生垣塀構造
ITVI960160A1 (it) Intelaiatura per tenda a forma di gazebo
AU2010202021A1 (en) Support structure for a stair element
JPH03169935A (ja) 建物の構築方法
EP0285113A1 (de) Regelverbindung zum Verbinden eines Längsträgers an ein Pfostenpaar

Legal Events

Date Code Title Description
STCF Information on status: patent grant

Free format text: PATENTED CASE

FEPP Fee payment procedure

Free format text: PAYOR NUMBER ASSIGNED (ORIGINAL EVENT CODE: ASPN); ENTITY STATUS OF PATENT OWNER: SMALL ENTITY

FPAY Fee payment

Year of fee payment: 4

FPAY Fee payment

Year of fee payment: 8

SULP Surcharge for late payment
FPAY Fee payment

Year of fee payment: 12